Middle School: 6th, 7th and 8th Grade - Science - Respiration 2 Solution - MCQGeeks.com

Q.1.

The trachea (windpipe) is kept open because it is made of rings of .......

0%
bone
0%
capillaries
100%
cartilage
0%
muscle

Q.2.

Respiration occurs in .......

0%
only cells in the arms and legs
0%
only heart cells
0%
only muscle cells
100%
all cells

Q.3.

When we inhale which one of the following is NOT correct?

0%
More space is formed in the thorax (volume increases)
50%
The air pressure in the chest (thorax) increases
0%
The diaphragm contracts
50%
The rib muscles contract

Q.4.

Oxygen is transported to all parts of the body by .......

0%
blood plasma
0%
dissolving in water
100%
red blood cells
0%
white blood cells

Q.5.

Which of the following is NOT true about the effect of exercise?

0%
Breathe more quickly
0%
Heart beats faster
67%
Less oxygen and glucose get to the muscles
33%
Pulse rate increases

Q.6.

Which of the following is NOT involved in removing carbon dioxide from the body?

0%
Carbon dioxide diffuses into blood plasma
0%
Carbon dioxide diffuses into the alveoli
100%
Carbon dioxide dissolves in water
0%
Carbon dioxide is transported in bloodstream to lungs

Q.7.

The diaphragm is .......

0%
a lining of the lungs
50%
a muscle which connects the ribs
50%
a sheet of muscle under the lungs
0%
the windpipe

Q.8.

For aerobic respiration, which two substances are needed?

50%
Glucose and carbon dioxide
0%
Glucose and water
50%
Oxygen and glucose
0%
Oxygen and water

Q.9.

Which of the following are products of respiration?

50%
Energy, carbon dioxide and water
0%
Energy, glucose and carbon dioxide
50%
Energy, oxygen and glucose
0%
Energy, oxygen and water

Q.10.

When we exhale which one of the following is NOT correct?

0%
Less space is formed in the thorax (volume decreases)
50%
The air is forced out of the thorax
0%
The diaphragm relaxes
50%
The rib muscles contract